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- IX. Reduktor vallarining dastlabki hisobi
VIII. Zanjirli uzatma hissobi.
Katta yulduzcha tishlari sonni aniqlash Z2=Z1*izanj=32*3=96 Yuklamaning hissobiy koeffitsiyent Ke= Кdin*Ka*Km*KӨ*KR*Kreg Кdin - dinamik zo'riqish koeffitsiyenti Ka - o ‘qlararo masofa koeffitsiyenti Km - moylash turini hisobga oluvchi koeffitsiyent KӨ- zanjirning o g ‘ ish burchagini hisobga oluvchi koeffitsiyent KR - zanjirning ishlash rejimini hisobga oluvchi koeffitsiyent Kreg- zanjirning taranglash turini hisobga oluvchi koeffitsiyent Ke=1*1.2*1.25*0.8*1=1.2 Bir qatorli zanjirning qadami t1=2.8* p=17 t1=2.8* =13.72 Zanjirning tezligini aniqlash V= t= 12.7 V= Aylantirish kuchi Ft= Ft= Sharnerdagi bosim P= P= =0.22 (p)=32[1 + 0.001(𝑧1 - 17)] (p)=32[1 + 0.001(32- 17)]=32.48 Zanjir zvenolari sonni aniqlash
Bu yerda: Z=z1+z2=32+110=142 at=50 Lt=2*50+0.5*142 Zanjirli uzatmaning markazlar aro masofasi az=0.25*t[𝐿𝑡- 0.5 ∗𝑍 + ] az=0.25*12.7 =1571.6=1.5 Markazdan qochma kuch Fv=q*v2 Fv=0.75*2.142=3.4347 Zanjir salqiligidan hosil bo’ladigan kuch Ff = 9.81*kf*q*az Ff=9.81*1.15*0.75*1.5=8.46 Valdagi xisobiy yuklama Fx= Ft +2*Ff Fx=7.26+2*8.46=122.855 IX. Reduktor vallarining dastlabki hisobi Buralishga ruxsat etilgan kuchlanish qiymati [𝜏]=20 MPa bo'lganda yetaklovchi valning chiqish oxiridagi diametri quyidagi formula bo'yicha aniqlanadi yetaklovchi val: dv1= dv1= =23.8=24 Aniqlangan qiymat bo’yicha standart qatordan etaklovchi valning diametr dv1 11 Val podshipnik o’rni pog’onasining diametri. dp1dv1(510) mm dp1=24+6=30mm Valning shesternya o’rnatiladigan pog’onasining diametri. dk dp1(510) mm dk=30+5=35mm Yetaklanuvchi val. Yetaklanuvchi valning chiqish oxiridagi diametric dv2= (𝜏)=25 MPa dv2= =33.1 bo’rtik diametri ddk (510) mm d35+5=40 Download 37.73 Kb. Do'stlaringiz bilan baham: |
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